Child Development

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    Prenatal Development

  • Prenatal - Heartbeat - Physical

    Fetal heartbeat at 5 weeks 6 daysAt 5 weeks after conception, the embryo develops a heartbeat. A fetus' heart beats about twice as fast as an adult's. The same blood vessel that the heart is made from will also form the circulatory system.
    (source for media: "5 Weeks 6 Day Ultrasound." YouTube. YouTube, 18 Jan. 2012. Web. 7 Oct. 2015.)
  • Prenatal - Kidneys - Physical

    Prenatal - Kidneys - Physical
    At 14 weeks after conception, the kidneys begin to produce urine. The urine is released into the amniotic fluid that surrounds the fetus, and this will continue until the baby is born.
    (source for media:
    Underwood MD, Mark A, William M Gilbert MD, and Michael P Sherman MD. "Amniotic Fluid: Not Just Fetal Urine Anymore." Nature.com. Nature Publishing Group, 2005. Web. 7 Oct. 2015.)
  • Prenatal - Hearing - Physical/Cognitive

    Prenatal - Hearing - Physical/Cognitive
    19 weeks pregnantAt 19 weeks, the baby's brain begins assigning specific parts of the brain for the 5 senses. Research shows that at this point, the baby can hear the mother's heartbeat and sounds from outside the womb as well.
    (source for media:
    "19 Weeks Pregnant: What Happens During 19th Week of Pregnancy?" YouTube. YouTube, 27 Nov. 2014. Web. 7 Oct. 2015.)
  • Prenatal - Brain Development - Cognitive

    28 weeks pregnant At 24 weeks, the brain continues to develop and the thalamocortical complex becomes active. This is the part of the brain that is responsible for consciousness. Research also shows that it is possible for the baby to dream at this point.
    (source for media: "28 Weeks Pregnant: Your Baby's Movement During 28 Week Pregnancy." YouTube. YouTube, 2015. Web. 7 Oct. 2015.)
  • Infancy - Eyesight - Physical Development

    Infancy - Eyesight - Physical Development
    By the end of their first month, infants develop about a 20/120 visual acuity and are able to focus on faces for about 8 seconds. Their vision is best within 8-12 inches of their faces, because they cannot fully utilize the muscles in their eyes that make it possible farther away.
    (media source:
    Goldbronn, MAS, RD, Jennifer. "Secrets of Baby Behavior." : Your Baby’s Senses (Part 4): Sight. Web. 26 Oct. 2015.)
  • Infancy - Neck Strength - Physical development

    Infancy - Neck Strength - Physical development
    By the age of 3 months, an infant lying on their stomach can lift their heads and support the weight with their arms. Before this they are only able to lift their heads for a few seconds before their neck is no longer able to support the weight of the head anymore.
    (media source:
    "Advice for New Parents, Baby Products and Homemade Food Recipes." New Parent RSS. Web. 28 Oct. 2015.)
  • Infancy - Hand Eye Coordination - Cognitive

    4 month old baby playing with toysBy 4 months, babies are able to use their eyes and hands together. They will reach for toys they are looking at and can even reach and grab with just one hand. At this point they can also follow moving objects with their eyes and focus on objects/faces from a distance.
    (Media source:
    "4 Month Old Baby Playing with Rattles." YouTube. YouTube, 29 July 2011. Web. 28 Oct. 2015.)
  • Infancy - Recognizing faces - Socio-emotional

    Infancy - Recognizing faces - Socio-emotional
    At 6 months, babies are able to remember familiar faces and can now recognize when someone is a stranger. At this point, they also respondto other's emotions and enjoy looking at themselves in the mirror.
    (Media source:
    "Baby Looking at Itself in a Mirror." Getty Images. Web. 28 Oct. 2015.)
  • Toddlerhood - Following orders - Cognitive

    2 year old naming animalsAt 2 years old, toddlers can follow basic two step instructions (ex: grab your toy and throw it). At this age they can also name animals when looking at pictures and can tell different shapes and patterns.
    (Media source:
    "24 Month Old Toddler Naming and Describing Animals." YouTube. YouTube. Web. 28 Oct. 2015.)
  • Toddlerhood - Physical independancy - Physical

    Toddlerhood - Physical independancy - Physical
    Once a child has reached toddlerhood (age 2), they should be able to move around quite a bit on their own. At this age, children can walk, run, stand on their tippy toes, throw toys overhand and even climb on and off furniture without help.
    (Media source:
    "Nebulous Content." » Kids. Web. 29 Oct. 2015.)
  • Toddlerhood - Problem Solving and Puzzle Pieces - Cognitive

    Toddlerhood - Problem Solving and Puzzle Pieces - Cognitive
    By the age of 3, children are able to open door handles on their own (if they can reach) and figure out how to open boxes and jars on their own. At this point, they are even able to solve puzzles with 3-4 pieces and can copy shapes with help.
    (Media source:
    "Toys for Toddlers with Autism." Buzzle. Buzzle.com. Web. 29 Oct. 2015.)
  • Toddlerhood - Posession and Sympathy - Socio-emotional

    Toddler Not Sharing ToysToddlers around 3 years old begin to understand the idea of ownership and posession (Ex: his, hers, mine, theirs.) They will also offer comfort to another child if he/she is upset/crying. At this point, they can also understand the idea of taking turns and can usually even dress themselves.
    (Media source:
    "Don't Do That! Toddler Hates Sharing." YouTube. YouTube, 14 May 2015. Web. 29 Oct. 2015.)
  • Early Years - Make-believe play - Socioemotional

    Playing BarberBy the age of 4, children are engaging in more play using their imagination. At this age, they may have a hard time deciphering between what's real and what isn't, but they are still becoming more creative with the scenarios they play out.
    (Media source:
    "Make Believe Play." YouTube. YouTube, 24 Apr. 2012. Web. 18 Nov. 2015.)
  • Early Years - Numbers and Time - Cognitive

    Early Years - Numbers and Time - Cognitive
    Children understand the idea of counting and time and can identify some letters and numbers around the age of 4. They can also remember certain parts of stories and predict what they think will happen next in a story.
    (Media Source:
    "Little Log Cottage School." Little Log Cottage School. Web. 18 Nov. 2015.)
  • Early Years - Physical Development - Physical

    5 Year old playing on jungle gymSwinging, climbing, summersaults and skipping are a few of the energetic physical activities that 5 year olds partake in. A child at this age should also be able to use the toilet on their own at this point.
    (Media Source:
    "5 Year Old Killing Monkey Bars! Amazingly Fast and Little." YouTube. YouTube, 13 July 2012. Web. 18 Nov. 2015.)
  • Early Years - Dental Development - Physical

    Early Years - Dental Development - Physical
    Children start losing their baby teeth and develop their first molars at the age of 6. Some children start loosing teeth as early as 4 and as late as 7 years old.
    (Media Source:
    "Tooth Fairy Prices - up 1200-8000%?! - Mothering Matters." Mothering Matters. 4 Sept. 2012. Web. 18 Nov. 2015.)
  • Middle Childhood - Self-concept - Socio-emotional

    Middle Childhood - Self-concept - Socio-emotional
    In middle childhood, their self-concept is influenced by family, peers, and teachers. Boys show a lower level of concern for their physical appearance than girls do at this age, but this is later influenced by the media and their peers. When puberty begins, girls experience a decline in their body image, while boys feel more pressure to be masculine.
    (Media source:
    "Influences on Self-Concept." ChildHealth-Explanation.com. Web. 4 Dec. 2015.)
  • Middle Childhood - Boys vs Girls - Physical

    Middle Childhood - Boys vs Girls - Physical
    During middle childhood, boys tend to show more physical development than girls. Boys can throw a small ball almost twice as far as a girl at the age of 8, but by 9 years old the girls have caught up. By 10 years old, both boys and girls can run 17 feet per second.
    (Media source:
    "Boy vs Girl SMS,Urdu Boys Vs Girls Sms,Girls Sms." Latest Collection of SmsShayariPoetryGhazalPoemQuotes RSS. 6 Dec. 2014. Web. 4 Dec. 2015.)
  • Middle Childhood - Language Skills - Cognitive

    Interview With two 10-year Old GirlsBetween the ages of 9-11, children typically have a vocabulary consisting of 19,000 words. Pragmatics are used more competently while both language and communication skills develop at this stage.
    (Media source:
    "Boy vs Girl SMS,Urdu Boys Vs Girls Sms,Girls Sms." Latest Collection of SmsShayariPoetryGhazalPoemQuotes RSS. 6 Dec. 2014. Web. 4 Dec. 2015.)
  • Middle Childhood - Puberty in Girls - Physical

    Middle Childhood - Puberty in Girls - Physical
    11 is the average age that girls begin puberty. Boys, however, don't usually begin puberty until they're 13.
    (Media source:
    "Wellcast - What Is Puberty? Decoding Puberty in Girls." YouTube. YouTube, 13 Apr. 2014. Web. 4 Dec. 2015.)
  • Adolescence - Abstract Thinking - Cognitive

    Adolescence - Abstract Thinking - Cognitive
    Boys and girls in this age group tend to show an increase in abtract thinking, this leads to improvements in verbal skills. Girls at this age are more advanced in liguistics, while boys show more skills in mathematics.
    (Media source: "Estimating Risk: Concrete Thinking vs. Abstract Thinking." Barfblog. 26 June 2015. Web. 8 Dec. 2015)
  • Adolesense - Adult height - Physical

    Adolesense - Adult height - Physical
    In girls, adult height is usually reached by the age of 15 or 16 and 17 or 18 for boys.
    (Media source:
    "Height Measure." Shutterstock. Web. 8 Dec. 2015.)
  • Adolescence - Friendships - Socio-emotional

    Adolescence - Friendships - Socio-emotional
    Almost every aspect of an adolescent's life is influenced by peers. Making and maintaining strong friendships is very important during this period. Friends/peers influence choices in clothing, music, tv/entertainment, etc, while parents are more likely to influence academic decisions.
    (Media source:
    "How To Parent A Teen." How To Parent A Teen. Web. 8 Dec. 2015.)
  • Adolescense - Relationsips - Socio-emotional

    Adolescense - Relationsips - Socio-emotional
    Teenagers show an attraction to the opposite sex and a higher capacity for maintaining intimate relationships. In girls, the importance of relationships is much higher than that in boys.
    (Media source:
    "Start Strong: A Class for Teens on How to Break Up." Babble. 27 July 2012. Web. 8 Dec. 2015.)